Draytek Vigor2850 Series, User Manual

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Vigor2850 Series User’s Guide
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3 3 . . 9 9 . . 5 5 U U P P n n P P
The
UPnP
(Universal Plug and Play) protocol is supported to bring to network connected
devices the ease of installation and configuration which is already available for directly
connected PC peripherals with the existing Windows 'Plug and Play' system. For NAT routers,
the major feature of UPnP on the router is “NAT Traversal”. This enables applications inside
the firewall to automatically open the ports that they need to pass through a router. It is more
reliable than requiring a router to work out by itself which ports need to be opened. Further,
the user does not have to manually set up port mappings or a DMZ.
UPnP is available on
Windows XP
and the router provide the associated support for MSN Messenger to allow full
use of the voice, video and messaging features.
Available settings are explained as follows:
Item Description
Enable UPNP Service
Accordingly, you can enable either the
Connection Control
Service
or
Connection Status Service
.
After setting
Enable UPNP Service
setting, an icon of
IP Broadband Connection on Router
on Windows XP/Network Connections will appear. The connection status and control status
will be able to be activated. The NAT Traversal of UPnP enables the multimedia features of
your applications to operate. This has to manually set up port mappings or use other similar
methods. The screenshots below show examples of this facility.
The UPnP facility on the router enables UPnP aware applications such as MSN Messenger to
discover what are behind a NAT router. The application will also learn the external IP address